1. hafta örnek

1. örnek disk boş alan

            public static void disk(){

                        File file = new File("c:");

            long totalSpace = file.getTotalSpace(); //toplam boş alan

            long usableSpace = file.getUsableSpace();

            long freeSpace = file.getFreeSpace();

 

            System.out.println(" === Partition Detail ===");

 

            System.out.println(" === bytes ===");

            System.out.println("Toplam alan : " + totalSpace + " bytes");

            System.out.println("toplam bos kullanilabilir : " + usableSpace + " bytes");

            System.out.println("bos alan : " + freeSpace + " bytes");

 

            System.out.println(" === mega bytes ===");

            System.out.println("mb cinsinden toplam : " + totalSpace /1024 /1024 + " mb");

            System.out.println("mb cinsinden toplam kullanilabilir : " + usableSpace /1024 /1024 + " mb");

            System.out.println("mb cinsinden toplam bos : " + freeSpace /1024 /1024 + " mb");

            }

2.örnek: internet bağlantısı kontrolü

            public static void eris(){

                       

                        boolean connectivity;

                        try {

                            URL url = new URL("http://www.cs.sakarya.edu.tr/");

                            URLConnection c>

                            conn.connect();

                            c>true;

                         

                        } catch (Exception e) {

                            c>false;

                        }

                           if(c>true)

                                      System.out.println("baglanti var");

            }

3. örnek Çalışan processlerin görüntülenmesi

try {

                            String line;

                            Process p = Runtime.getRuntime().exec("ps -e");

                            BufferedReader input =

                                    new BufferedReader(new InputStreamReader(p.getInputStream()));

                            while ((line = input.readLine()) != null) {

                                System.out.println(line); //<-- Parse data here.

                            }

                            input.close();

                        } catch (Exception err) {

                            err.printStackTrace();

                        }